NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carl Andrew Cassel, D.O.

Family Medicine Physician in Madison, WI · enumerated 2014.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1689087900

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Carl Andrew Cassel
Credential D.O.
Sex Male
Practice address 7102 Mineral Point Rd, Madison, WI, 53717
Phone (608) 828-7603
Fax (608) 828-7644
Enumeration date Jun 4, 2014
Last updated in NPPES Aug 2, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 1464 (NE) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 75712 (WI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Carl Cassel?
The National Provider Identifier (NPI) for Carl Cassel is 1689087900, a Type 1 (individual) record in the CMS NPPES registry.
Where does Carl Cassel practice?
The practice location on file with NPPES is in Madison, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-02.